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From "zhanlijun (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (LUCENE-6037) PendingTerm cannot be cast to PendingBlock
Date Mon, 03 Nov 2014 04:00:34 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-6037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14194130#comment-14194130
] 

zhanlijun edited comment on LUCENE-6037 at 11/3/14 3:59 AM:
------------------------------------------------------------

I found the cause of the problem. 
I have a application scenario that add a same document to the index by using indexwriter.addDocuments().
In order to improve the efficiency of indexing, I make the document into a static variable.
 This way running very well in a single-threaded environment, however, when I use multiple-threads
to operator indexwriter.addDocuments(), it cause the error. 
 
The solution: I make a new document for each thread, and the error would no longer be reappeared.


was (Author: zhanlijun):
I used multiple threads to add a single document (static variable), and it would cause this
error.  After I corrected, the error would no longer be reappeared.

> PendingTerm cannot be cast to PendingBlock
> ------------------------------------------
>
>                 Key: LUCENE-6037
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6037
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/codecs
>    Affects Versions: 4.3.1
>         Environment: ubuntu 64bit
>            Reporter: zhanlijun
>            Priority: Critical
>             Fix For: 4.3.1
>
>
> the error as follows:
> java.lang.ClassCastException: org.apache.lucene.codecs.BlockTreeTermsWriter$PendingTerm
cannot be cast to org.apache.lucene.codecs.BlockTreeTermsWriter$PendingBlock
>         at org.apache.lucene.codecs.BlockTreeTermsWriter$TermsWriter.finish(BlockTreeTermsWriter.java:1014)
>         at org.apache.lucene.index.FreqProxTermsWriterPerField.flush(FreqProxTermsWriterPerField.java:553)
>         at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:85)
>         at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
>         at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
>         at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
>         at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:493)
>         at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:480)
>         at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:378)
>         at org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:413)
>         at org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1283)
>         at org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1243)
>         at org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1228)



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